While Slag pointed out the specifics, I should mention that, if you're at war, your opponents will be able to see that you're online when you log on because of the nice yellow smiley faces on your forum posts, so you'll give away your KR times in the minute or so that you wait for everyone to get organized on IRC unless you manually log out of the forum after logging on to the portal.

EDIT: I just realized that's not what you asked. Please don't put me on that "retard" list.

That said, I think this might have been fixed recently. I haven't paid too much attention since last set's Team war.